[vsnet-grb-info 2507] GRB 051211a: RTT150 optical observations

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4344
SUBJECT: GRB 051211a: RTT150 optical observations
DATE:    05/12/12 23:40:20 GMT
FROM:    Irek Khamitov at TUG  <irekk at tug.tug.tubitak.gov.tr>

R. Zhuchkov,  I. Bikmaev, N. Sakhibullin (KSU/AST)
R. Burenin, M. Pavlinsky, R. Sunyaev (IKI)
I. Khamitov, Z. Aslan (TUG), U. Kiziloglu (METU), E. Gogus (Sabanci Uni.),

report:

    The error radius of GRB 051211a (Atteia et al, GCN4324) was observed with
Russian-Turkish 1.5-m telescope (RTT150, Bakyrlytepe, TUBITAK National Observatory,
Turkey), starting at Dec. 11, 18:38UT, i.e. ~15.8 hours after the burst.
    Two frames (300s exposures in R and B bands) were taken. We did not detect
new sources to compare with DSS frames. Using USNO-B1 stars we estimate limiting
magnitude of our images as:

t-t0     Band   m_lim
(hour)          (mag)
----------------------
15.84	   R    20.60
15.99	   B    20.57

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